llvm/test/Transforms/IndVarSimplify/debugloc-rem-subst.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt < %s -p=indvars -S | FileCheck %s

;; When that when IndVarSimplify simplifies the rem to a cmp and select, we
;; propagate the rem's source location to both the new instructions.

define i32 @widget() !dbg !5 {
; CHECK-LABEL: define i32 @widget(
; CHECK-SAME: ) !dbg [[DBG5:![0-9]+]] {
; CHECK-NEXT:  [[BB:.*:]]
; CHECK-NEXT:    br label %[[BB1:.*]]
; CHECK:       [[BB1_LOOPEXIT:.*]]:
; CHECK-NEXT:    br label %[[BB1]]
; CHECK:       [[BB1]]:
; CHECK-NEXT:    br label %[[BB2:.*]]
; CHECK:       [[BB2]]:
; CHECK-NEXT:    [[PHI:%.*]] = phi i32 [ 0, %[[BB1]] ], [ [[ADD:%.*]], %[[BB2]] ]
; CHECK-NEXT:    [[ADD]] = add nuw nsw i32 1, [[PHI]]
; CHECK-NEXT:    [[TMP0:%.*]] = icmp eq i32 [[ADD]], 3, !dbg [[DBG8:![0-9]+]]
; CHECK-NEXT:    [[IV_REM:%.*]] = select i1 [[TMP0]], i32 0, i32 [[ADD]], !dbg [[DBG8]]
; CHECK-NEXT:    [[ZEXT:%.*]] = zext i32 [[IV_REM]] to i64
; CHECK-NEXT:    br i1 false, label %[[BB2]], label %[[BB1_LOOPEXIT]]
;
bb:
  br label %bb1

bb1:                                              ; preds = %bb2, %bb
  br label %bb2

bb2:                                              ; preds = %bb2, %bb1
  %phi = phi i32 [ 0, %bb1 ], [ %add, %bb2 ]
  %add = add i32 1, %phi
  %urem = urem i32 %add, 3, !dbg !8
  %zext = zext i32 %urem to i64
  %icmp = icmp ult i32 %phi, 2
  br i1 %icmp, label %bb2, label %bb1
}

!llvm.dbg.cu = !{!0}
!llvm.debugify = !{!2, !3}
!llvm.module.flags = !{!4}

!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
!1 = !DIFile(filename: "llvm/test/Transforms/IndVarSimplify/debugloc-rem-subst.ll", directory: "/")
!2 = !{i32 8}
!3 = !{i32 0}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = distinct !DISubprogram(name: "widget", linkageName: "widget", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
!6 = !DISubroutineType(types: !7)
!7 = !{}
!8 = !DILocation(line: 1, column: 1, scope: !5)
;.
; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C, file: [[META1:![0-9]+]], producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
; CHECK: [[META1]] = !DIFile(filename: "{{.*}}debugloc-rem-subst.ll", directory: {{.*}})
; CHECK: [[DBG5]] = distinct !DISubprogram(name: "widget", linkageName: "widget", scope: null, file: [[META1]], line: 1, type: [[META6:![0-9]+]], scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: [[META0]])
; CHECK: [[META6]] = !DISubroutineType(types: [[META7:![0-9]+]])
; CHECK: [[META7]] = !{}
; CHECK: [[DBG8]] = !DILocation(line: 1, column: 1, scope: [[DBG5]])
;.